diff options
| author | Simon Riggs <simon@2ndQuadrant.com> | 2010-04-23 22:23:39 +0000 |
|---|---|---|
| committer | Simon Riggs <simon@2ndQuadrant.com> | 2010-04-23 22:23:39 +0000 |
| commit | 473af3973710b9e2f4e945d8290adae8de9696cc (patch) | |
| tree | 90fcd98789af3364f33256cfaef2fa9bb7581644 /src/include | |
| parent | 491d1ea5b3605809ec1103e939b3324acc9a2516 (diff) | |
Add missing optimizer hooks for function cost and number of rows.
Closely follow design of other optimizer hooks: if hook exists
retrieve value from plugin; if still not set then get from cache.
Diffstat (limited to 'src/include')
| -rw-r--r-- | src/include/utils/lsyscache.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/include/utils/lsyscache.h b/src/include/utils/lsyscache.h index 429bcaa1477..e25a4d9475a 100644 --- a/src/include/utils/lsyscache.h +++ b/src/include/utils/lsyscache.h @@ -6,7 +6,7 @@ * Portions Copyright (c) 1996-2010, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $PostgreSQL: pgsql/src/include/utils/lsyscache.h,v 1.131 2010/01/04 02:44:40 tgl Exp $ + * $PostgreSQL: pgsql/src/include/utils/lsyscache.h,v 1.132 2010/04/23 22:23:39 sriggs Exp $ * *------------------------------------------------------------------------- */ @@ -30,6 +30,12 @@ typedef enum IOFuncSelector typedef int32 (*get_attavgwidth_hook_type) (Oid relid, AttrNumber attnum); extern PGDLLIMPORT get_attavgwidth_hook_type get_attavgwidth_hook; +/* Hook for plugins to get control in get_func_cost and get_func_rows */ +typedef float4 (*get_func_cost_hook_type) (Oid funcid); +extern PGDLLIMPORT get_func_cost_hook_type get_func_cost_hook; +typedef float4 (*get_func_rows_hook_type) (Oid funcid); +extern PGDLLIMPORT get_func_rows_hook_type get_func_rows_hook; + extern bool op_in_opfamily(Oid opno, Oid opfamily); extern int get_op_opfamily_strategy(Oid opno, Oid opfamily); extern void get_op_opfamily_properties(Oid opno, Oid opfamily, |